Aregular pentagon and a square share a mutual vertex b. the sides ab and bc are sides of a third polygon with vertex b. how many sides does this polygon have?

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

is there any photos or whatever?

imma say 16%. sorry if its wrong. i'm doing the same stuff right now

step-by-step explanation:

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6